body {
  font-family: Arial, sans-serif;
  background-color: #f0f5f9;
  margin: 0;
  padding: 0;
}
.container {
  max-width: 400px;
  margin: 100px auto;
  padding: 20px;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  text-align: center;
}
h2 {
  color: #1e88e5;
  margin-bottom: 20px;
}
.success-icon {
  color: #4caf50;
  font-size: 60px;
  margin-bottom: 20px;
}
.message {
  margin-bottom: 30px;
  color: #333;
}
.btn {
  display: inline-block;
  padding: 10px 20px;
  background-color: #1e88e5;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  font-size: 16px;
}
.btn:hover {
  background-color: #0d47a1;
}